I had a relative on one of those boats thats getting salvaged not that I knew him of course. I believe he was a cadet or something.
I have dived the wrecks of Jutland and also the Hampshire before the law was changed making it an offense for a british citizen to dive on a british war grave, everyone else can mind.
The scapa wrecks are falling in on themselves now and have been salvaged for years and years. There are a few king class boats left upside down but thats about it. Everything else is either gone or stripped.
I seem to remember that the cressi had some special armour plating on it